CVE - CVE-2022-42334

CVE-ID
CVE-2022-42334	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly override defaults which would otherwise be put in place. While not exposed to the affected guests themselves, the interface specifically exists for domains controlling such guests. This interface may therefore be used by not fully privileged entities, e.g. qemu running deprivileged in Dom0 or qemu running in a so called stub-domain. With this exposure it is an issue that - the number of the such controlled regions was unbounded (CVE-2022-42333), - installation and removal of such regions was not properly serialized (CVE-2022-42334).
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
GENTOO:GLSA-202402-07 URL:https://security.gentoo.org/glsa/202402-07 MISC:DSA-5378 URL:https://www.debian.org/security/2023/dsa-5378 MISC:FEDORA-2023-703f133eb3 URL:https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/ MISC:FEDORA-2023-da8315e641 URL:https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/ MISC:[oss-security] 20230321 Xen Security Advisory 428 v3 (CVE-2022-42333,CVE-2022-42334) - x86/HVM pinned cache attributes mis-handling URL:http://www.openwall.com/lists/oss-security/2023/03/21/2 MISC:http://xenbits.xen.org/xsa/advisory-428.html URL:http://xenbits.xen.org/xsa/advisory-428.html MISC:https://xenbits.xenproject.org/xsa/advisory-428.txt URL:https://xenbits.xenproject.org/xsa/advisory-428.txt
Assigning CNA
Xen Project
Date Record Created
20221003	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20221003)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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